Industrial fishing fleets have doubled the distance they travel to fishing grounds since 1950 but catch only a third of what they did 65 years ago per kilometre travelled, a new study has found.
Researchers from from the Sea Around Us initiative at the University of Western Australia and the University of British Columbia mapped the growth and spread of industrial fisheries since 1950 and found that global trends were dominated by the heavily subsidized fleets of a small number of countries, increasing the total area fished from 60 per cent to 90 per cent of the world’s oceans.
“While most countries continue to focus their fishing efforts on local waters, Taiwan, South Korea, Spain and China have aggressively subsidized vessel and fuel costs to encourage their fleets to operate thousands of kilometres from their home ports,” said lead author David Tickler, a postgraduate student at UWA’s School of Biological Sciences.
Despite this geographical expansion, the catch rates of these fleets – as well as those of the other top 20 fishing countries – have declined dramatically from over 25 tonnes per 1000 kilometres travelled in the early 1950s to approximately 7 tonnes per 1000 kilometres travelled by 2014. Overall, these 20 countries are responsible for 60 million tonnes or 80 per cent of the global industrial fishing catch.
“These findings show that nowadays more fuel is being burned and more time is being spent at sea for every fish caught,” Tickler said. “These diminishing returns to fishing effort are a worrying indicator of the inability of fisheries to sustainably meet consumer demands and previous catch levels.”
The researchers also found that these historical expansions were most pronounced along the coasts and archipelagic waters of Southeast Asia, Africa, South America and the South Asian subcontinent.
“Essentially no waters other than those at the polar extremes are presently unfished to some degree,” said co-author Daniel Pauly, principal investigator of the Sea Around Us initiative at UBC’s Institute for the Oceans and Fisheries. “But this continued expansion and concurrent intensification of fishing efforts has only contributed to the depletion of new areas of the ocean.”
According to the researchers, these findings are further proof that subsidies paid to industrial fishing fleets encourage inefficient and unsustainable uses of fisheries resources. “The data seem to indicate that we have reached the physical limits of expansion in capture fisheries. Industrial catches peaked in 1996, when the discovery of new stocks was no longer able to keep up with the declines in existing stocks,” said co-author Dirk Zeller, who heads the Sea Around Us – Indian Ocean at UWA.
For Jessica Meeuwig, who leads UWA’s Marine Futures Lab and co-authored the study, the solution to these problems is obvious, “We have to accept that for fisheries to continue to support humanity into the future, we are going to have to allow the oceans some space and time to recover from over a century of unfettered industrial fishing.”
The Latest on: Industrial fisheries
via Google News
The Latest on: Industrial fisheries
- NOAA Fisheries Announces Changes to Management of Cobia in Federal Waters of the Atlantic on February 19, 2019 at 1:43 pm
For the commercial sector, the minimum size limit is 33 inches fork length and the trip limit is two fish per person per day or six fish per vessel per day, whichever is more restrictive. For the recr... […]
- New Alaska governor wants to stop sharing fish tax with state’s towns on February 19, 2019 at 10:49 am
By no longer sharing the fish tax revenue, he would save the state about $28 million per year, according to the news service. Several Alaska towns are concerned, including Cordova, Alaska, which maint... […]
- Senegalese Fisheries Agreement Is ‘No Deal’ on February 19, 2019 at 9:40 am
According to deal documents, NaFAA only confirmed that 300 Senegalese vessels, which include 200 semi-industrial and 100 artisanal canoes to fish in Liberia’s waters, the document states that vessels ... […]
- Fish Oil Industry- Global Market to Attain the Value of US$ 3.04 Bn by 2025 End- QY Research, Inc. on February 19, 2019 at 5:30 am
On the other hand, based on application segment, the global fish oil market is segmented into direct consumption, aquaculture, hydrogenation, industrial use and others. Asia Pacific, Europe ... […]
- Florida company may build commercial eel farm in Michigan on February 19, 2019 at 5:09 am
which one state agriculture official said could be the first facility in the U.S. to commercially raise the long fish for food. Aqua Vida Aquaculture is considering land in an industrial park in St. J... […]
- Somers proposes bill to ease commercial fishing regulations on offloading on February 18, 2019 at 8:44 pm
Somers’ proposal would bring Connecticut into agreements with bordering states to allow Connecticut’s commercial fishermen to carry fish earmarked for one state into another state’s port without penal... […]
- LAFA Refutes Claims in Senegalese Fisheries Deal on February 18, 2019 at 6:21 pm
She said the controversial fisheries agreement states that 100 artisanal fishing vessels from Senegal will operate in the six nautical miles and 200 semi-industrial vessels in 4 nautical miles. Madam ... […]
- Is beauty in the eye of the beholder, even with the fish we eat? on February 18, 2019 at 2:38 pm
Professor Gardner said some fishers aren't catching their quota, citing reasons like low demand, low prices, high labour costs, competition from aquaculture and even public opposition to some commerci... […]
- Commercial Fishermen Express Interest In Two Bills on February 18, 2019 at 1:26 pm
One of the bills would require the commissioner of the Department of Energy and Environmental Protection to allow fishermen who are licensed in more than one state to engage in dual landings of fish. ... […]
via Bing News